Microbial Respiration

AUS-TGP-CON-SMR General Moderate confidence

Benchmark Value

6 mg C/kg soil/d

Direction: Higher is desirable ↑

Form: Point

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is Point, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

Point Primary Point Guard MinimumOnly Guard Point Guard

Evidence & Context

Based on the derivation from high-quality TERN data, the following benchmark is proposed for microbial respiration in Australian Temperate Grassy Woodlands under conservation management, representing the best available natural condition.

Metric Definition:

Basal microbial respiration, defined as the flux of carbon dioxide (CO2) from soil under controlled temperature and moisture conditions, serves as a primary indicator of soil biological activity.

Benchmark Definition:

This benchmark represents the rate of microbial respiration, indicating soil biological activity in Temperate Grassy Woodlands & Plains under conservation management in Australia.

Justification:

The benchmark is a derived estimate from the TERN Great Western Woodlands SuperSite data, assuming microbial respiration is 50% of ecosystem respiration, with soil bulk density of 1.3 g/cm³ and active soil depth of 10 cm.

Sources (2)

Preview of Great Western Woodlands Flux Data Collection - TERN Data ..., accessed August 12, 2025,

Great Western Woodlands Flux Data Collection - TERN Data ..., accessed August 12, 2025, Government

Cumberland Plain SuperSite | Biogeochemical Fluxes & Climate

Preview of Great Western Woodlands SuperSite | Climate Change Impacts - TERN Australia, accessed July 10, 2025,

Great Western Woodlands SuperSite | Climate Change Impacts - TERN Australia, accessed July 10, 2025, Government

URBAN FOREST STRATEGY - Your Say South Perth, accessed July 13, 2025

Supporting Sources (21)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) TERN, Australia's Land Observatory: addressing the global challenge of forecasting ecosystem responses to climate variability and change - ResearchGate, accessed on June 5, 2025

(PDF) TERN, Australia's Land Observatory: addressing the global challenge of forecasting ecosystem responses to climate variability and change - ResearchGate, accessed on June 5, 2025

Contextual Support GreyLiterature

(PDF) TERN, Australia's Land Observatory: addressing the global challenge of forecasting ecosystem responses to climate variability and change - ResearchGate, accessed August 12, 2025,

Preview of Actual Evapotranspiration for Australia using CMRSET algorithm, accessed August 12, 2025,

Actual Evapotranspiration for Australia using CMRSET algorithm, accessed August 12, 2025,

Contextual Support Government

Actual Evapotranspiration for Australia using CMRSET algorithm, accessed August 12, 2025,

Preview of Australian Journal of Botany - CSIRO PUBLISHING, accessed August 12, 2025,

Australian Journal of Botany - CSIRO PUBLISHING, accessed August 12, 2025,

Contextual Support Journal

The Rangeland Journal - CSIRO PUBLISHING, accessed August 4, 2025,

Preview of Combating Australian Soil Degradation for Sustainable Agriculture and Food Security, accessed August 12, 2025,

Combating Australian Soil Degradation for Sustainable Agriculture and Food Security, accessed August 12, 2025,

Contextual Support Journal

Combating Australian Soil Degradation for Sustainable Agriculture and Food Security, accessed August 12, 2025,

Preview of Degradation Reduces Microbial Richness and Alters Microbial Functions in an Australian Peatland - ResearchGate, accessed August 12, 2025,

Degradation Reduces Microbial Richness and Alters Microbial Functions in an Australian Peatland - ResearchGate, accessed August 12, 2025,

Contextual Support Journal

Degradation Reduces Microbial Richness and Alters Microbial Functions in an Australian Peatland - ResearchGate, accessed August 12, 2025,

Preview of Ecosystem Processes – Environmental Data Collection Methods - TERN Australia

Ecosystem Processes – Environmental Data Collection Methods - TERN Australia

Methodology Source Government

Ecosystem Processes – Environmental Data Collection Methods - TERN Australia, accessed July 17, 2025

Preview of Incomplete recovery of ecosystem processes after two decades of ..., accessed August 12, 2025,

Incomplete recovery of ecosystem processes after two decades of ..., accessed August 12, 2025,

Contextual Support

Incomplete recovery of ecosystem processes after two decades of ..., accessed August 12, 2025,

Preview of Inherent Factors Affecting Soil Respiration - Solvita, accessed August 5, 2025,

Inherent Factors Affecting Soil Respiration - Solvita, accessed August 5, 2025,

Contextual Support Journal

Inherent Factors Affecting Soil Respiration - Solvita

Preview of Inherent Factors Affecting Soil Respiration - USDA, accessed July 30, 2025,

Inherent Factors Affecting Soil Respiration - USDA, accessed July 30, 2025,

Contextual Support Journal

Inherent Factors Affecting Soil Respiration - USDA

Preview of Long-term forest soil warming alters microbial communities in temperate forest soils - Frontiers, accessed August 12, 2025,

Long-term forest soil warming alters microbial communities in temperate forest soils - Frontiers, accessed August 12, 2025,

Contextual Support

Long-term forest soil warming alters microbial communities in temperate forest soils - Frontiers, accessed August 12, 2025,

Preview of Nationally Threatened Ecological Communities of the Victorian Volcanic Plain: Natural Temperate Grassland & Grassy Eucalypt Woodland - DCCEEW, accessed August 12, 2025,

Nationally Threatened Ecological Communities of the Victorian Volcanic Plain: Natural Temperate Grassland & Grassy Eucalypt Woodland - DCCEEW, accessed August 12, 2025,

Contextual Support Journal

NSW National Parks and Wildlife Service. (2006). Woodland Remnants and Dryland Salinity: Impacts of dryland salinity on woodland remnants in the Southern Tablelands and South-West Slopes of New South Wales.

Preview of Natural Temperate Grassland of the Southern Tablelands of NSW and the Australian Capital Territory. - DCCEEW, accessed August 12, 2025,

Natural Temperate Grassland of the Southern Tablelands of NSW and the Australian Capital Territory. - DCCEEW, accessed August 12, 2025,

Contextual Support Government

NVIS Fact sheet MVG 19 Tussock grasslands, accessed August 6, 2025

Preview of NVIS Fact sheet MVG 19 6 Tussock grasslands, accessed July 16, 2025,

NVIS Fact sheet MVG 19 6 Tussock grasslands, accessed July 16, 2025,

Contextual Support Journal

Understanding soil pH, accessed August 28, 2025

Preview of Soil | Australia state of the environment 2021, accessed August 12, 2025,

Soil | Australia state of the environment 2021, accessed August 12, 2025,

Contextual Support Journal

OzFlux-TERN GWW SuperSite presentation: Soil Chemical Properties

Preview of Soil Respiration - Natural Resources Conservation Service, accessed July 30, 2025,

Soil Respiration - Natural Resources Conservation Service, accessed July 30, 2025,

Contextual Support Journal

Temperate Grasslands - Greening Australia, accessed August 12, 2025,

Preview of Soil Respiration in Semiarid Temperate Grasslands under Various Land Management | PLOS One - Research journals, accessed August 12, 2025,

Soil Respiration in Semiarid Temperate Grasslands under Various Land Management | PLOS One - Research journals, accessed August 12, 2025,

Contextual Support Journal

Soil Respiration in Semiarid Temperate Grasslands under Various Land Management | PLOS One - Research journals, accessed August 12, 2025,

Preview of Temperate Grasslands - Greening Australia, accessed August 4, 2025

Temperate Grasslands - Greening Australia, accessed August 4, 2025

Contextual Support Journal

Plant nutrients in the soil - NSW Department of Primary Industries

Preview of Temperature response of soil respiration largely unaltered with experimental warming, accessed August 12, 2025,

Temperature response of soil respiration largely unaltered with experimental warming, accessed August 12, 2025,

Contextual Support GreyLiterature

Temperature response of soil respiration largely unaltered with experimental warming, accessed August 12, 2025,

Preview of The Great Western Woodlands TERN SuperSite: ecosystem monitoring infrastructure and key science learnings - Journal of Ecology and Environment, accessed August 12, 2025,

The Great Western Woodlands TERN SuperSite: ecosystem monitoring infrastructure and key science learnings - Journal of Ecology and Environment, accessed August 12, 2025,

Contextual Support GreyLiterature

The Great Western Woodlands TERN SuperSite: ecosystem monitoring infrastructure and key science learnings - Journal of Ecology and Environment, accessed August 12, 2025,

Preview of Warming increases soil respiration in a carbon-rich soil without changing microbial respiratory potential - BG, accessed August 12, 2025,

Warming increases soil respiration in a carbon-rich soil without changing microbial respiratory potential - BG, accessed August 12, 2025,

Contextual Support Journal

Warming increases soil respiration in a carbon-rich soil without changing microbial respiratory potential - BG, accessed August 12, 2025,

Preview of Woodlands - DCCEEW, accessed August 5, 2025,

Woodlands - DCCEEW, accessed August 5, 2025,

Contextual Support Government

Woodlands - DCCEEW, accessed August 4, 2025,

Context

Region Australia
Biome Temperate Grassy Woodlands & Plains
Land Use Conservation / Protected Natural Areas
Assessment Conservation Target
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 6 Jun 2026

Notes

No upper detrimental threshold — higher values are always better up to natural saturation. The benchmark value is a modelled estimate, not a direct measurement. The functional range is dynamic, reflecting natural seasonal and diurnal fluctuations. Lower and upper thresholds are functionally defined but not numerically fixed.